Development of laser based OSL reader for its potential application in radiation dosimetry

Polymer Film Blend of Polyvinyl Alcohol, Trichloroethylene and Cresol Red for Gamma Radiation Dosimetry

Polymers ◽

10.3390/polym13111866 ◽

2021 ◽

Vol 13 (11) ◽

pp. 1866

Author(s):

Aris Doyan ◽

Susilawati Susilawati ◽

Saiful Prayogi ◽

Muhammad Roil Bilad ◽

Muhamad Fatikul Arif ◽

...

Keyword(s):

Radiation Dose ◽

Polyvinyl Alcohol ◽

Polymer Film ◽

Potential Application ◽

Radiation Dosimetry ◽

Energy Gap ◽

Dose Range ◽

Color Changes ◽

Γ Rays ◽

Cresol Red

This study investigated the polymer film composite of polyvinyl alcohol (PVA), trichlorethylene (TCE) and cresol red (CR) dye irradiated with gamma (γ) rays for potential application as radiation dosimetry. The film was prepared via the solvent-casting method with varying concentrations of TCE. Film samples were exposed to radiation from a γ-rays radiation source of 60Cobalt isotope. Color changes before and after γ-rays irradiation were observed, and the optical properties of the polymer films were investigated by spectrophotometry. Results show that increasing the radiation dose physically changed the color of the polymer film, from purple (pH > 8.8) without radiation (0 kGy) to yellow (almost transparent) (2.8 < pH < 7.2) at the highest dose (12 kGy). The concentration of acid formed due to irradiation increased with the increase in irradiation doses and at higher TCE content. The critical doses of PVA-TCE composites decreased linearly with the increase of TCE composition, facilitating an easy calibration process. The dose response at 438 nm increased exponentially with increasing radiation dose, but showed an opposite trend at the 575 nm band. An increase in the TCA concentration indicated a decrease in the absorption edge and an increase in activation energy, but both decreased for all TCE concentrations at higher doses. The energy gap for the direct and the indirect transitions decreased with increasing TCE concentration and γ-rays radiation dose. The results of this study demonstrated the potential application of PVA-TCE-CR polymer film as γ-rays irradiation dosimetry in a useful dose range of 0–12 kGy.

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Evaluation of a metaphase chromosome finder: Potential application to chromosome-based radiation dosimetry

Micron ◽

10.1016/0968-4328(95)00005-4 ◽

1995 ◽

Vol 26 (6) ◽

pp. 489-492 ◽

Cited By ~ 8

Author(s):

J.R.N. McLean ◽

F. Johnson

Keyword(s):

Metaphase Chromosome ◽

Potential Application ◽

Radiation Dosimetry

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Post-mortem Peyer’s patches: Their potential application in forensic medicine

Immunopharmacology and Immunotoxicology ◽

10.1080/08923970902902437 ◽

2009 ◽

Vol 00 (00) ◽

pp. 090513010017019-7

Author(s):

Biagio Solarino ◽

Giancarlo Di Vella ◽

Thea Magrone ◽

Felicita Jirillo ◽

Angela Tafaro ◽

...

Keyword(s):

Forensic Medicine ◽

Potential Application ◽

Peyer's Patches ◽

Peyer’S Patches ◽

Post Mortem

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Immunomodulation using genetically engineered bacteria for type III-mediated delivery of heterologous antigens and cytokines: Potential application in vaccine and therapeutical developments

Immunopharmacology and Immunotoxicology ◽

10.1080/08923970902817890 ◽

2009 ◽

Vol 00 (00) ◽

pp. 090924084723050-4

Author(s):

Mustapha Chamekh

Keyword(s):

Potential Application ◽

Genetically Engineered ◽

Type Iii ◽

Genetically Engineered Bacteria ◽

Heterologous Antigens ◽

Engineered Bacteria

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Comparison of Caseinolytic and Fibrinolytic Assays for Plasmin (Fibrinolysin) in “Fibrinolytic Agents”

Thrombosis and Haemostasis ◽

10.1055/s-0038-1649426 ◽

1966 ◽

Vol 15 (01/02) ◽

pp. 252-272

Author(s):

K. M Moser ◽

Mary Belle Frey

Keyword(s):

Linear Relationship ◽

Potential Application ◽

Fibrinolytic Agents ◽

Linear Portion

Summary1. Caseinolytic and fibrinolytic systems for assay of plasmin in fibrinolytic agents are described which are based upon the determinations of AE/min during the linear portion of the casein-plasmin and fibrin-plasmin reaction curves respectively. A " caseinolytic-rate " unit and “fibrinolytic-rate " unit of ÄE/min × 103 during the linear portion of the respective curves are proposed.2. Data are presented indicating that a reliably linear relationship exists between plasmin concentration and these caseinolytic - and fibrinolytic-rate units.3. Data comparing results obtained with the proposed assay techniques and previously-used casein and fibrinolytic techniques are presented.4. Formulae by which caseinolytic-rate and fibrinolytic-rate units can be roughly converted into Remmert-Cohen type plasmin units are offered.5. The theoretical and practical problems which have influenced development of assays for fibrinolytic components are discussed.6. The advantages of the plasmin “rate unit” techniques vis a vis existing assays are delineated.7. The potential application of the techniques to measurements other than the plasmin content of fibrinolytic agents is discussed.

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